chore(deps): update dependency @nomiclabs/hardhat-etherscan to v3 (#73)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

package-lock.json

@@ -10,7 +10,7 @@
             "license": "MIT",
             "devDependencies": {
                 "@nomiclabs/hardhat-ethers": "^2.0.5",
-                "@nomiclabs/hardhat-etherscan": "^2.1.8",
+                "@nomiclabs/hardhat-etherscan": "3.0.3",
                 "@nomiclabs/hardhat-solhint": "^2.0.0",
                 "@nomiclabs/hardhat-web3": "^2.0.0",
                 "@openzeppelin/contracts": "^4.5.0",
@@ -1449,9 +1449,9 @@
             }
         },
         "node_modules/@nomiclabs/hardhat-etherscan": {
-            "version": "2.1.8",
-            "resolved": "https://registry.npmjs.org/@nomiclabs/hardhat-etherscan/-/hardhat-etherscan-2.1.8.tgz",
-            "integrity": "sha512-0+rj0SsZotVOcTLyDOxnOc3Gulo8upo0rsw/h+gBPcmtj91YqYJNhdARHoBxOhhE8z+5IUQPx+Dii04lXT14PA==",
+            "version": "3.0.3",
+            "resolved": "https://registry.npmjs.org/@nomiclabs/hardhat-etherscan/-/hardhat-etherscan-3.0.3.tgz",
+            "integrity": "sha512-OfNtUKc/ZwzivmZnnpwWREfaYncXteKHskn3yDnz+fPBZ6wfM4GR+d5RwjREzYFWE+o5iR9ruXhWw/8fejWM9g==",
             "dev": true,
             "dependencies": {
                 "@ethersproject/abi": "^5.1.2",
@@ -1459,8 +1459,8 @@
                 "cbor": "^5.0.2",
                 "debug": "^4.1.1",
                 "fs-extra": "^7.0.1",
-                "node-fetch": "^2.6.0",
-                "semver": "^6.3.0"
+                "semver": "^6.3.0",
+                "undici": "^4.14.1"
             },
             "peerDependencies": {
                 "hardhat": "^2.0.4"
@@ -1468,6 +1468,7 @@
         },
         "node_modules/@nomiclabs/hardhat-etherscan/node_modules/semver": {
             "version": "6.3.0",
+            "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
             "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
             "dev": true,
             "bin": {
@@ -8935,14 +8936,6 @@
                 "lodash.toarray": "^4.4.0"
             }
         },
-        "node_modules/node-fetch": {
-            "version": "2.6.1",
-            "integrity": "sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw==",
-            "dev": true,
-            "engines": {
-                "node": "4.x || >=6.0.0"
-            }
-        },
         "node_modules/node-gyp-build": {
             "version": "4.2.3",
             "integrity": "sha512-MN6ZpzmfNCRM+3t57PTJHgHyw/h4OWnZ6mR8P5j/uZtqQr46RRuDE/P+g3n0YR/AiYXeWixZZzaip77gdICfRg==",
@@ -14310,9 +14303,9 @@
             "requires": {}
         },
         "@nomiclabs/hardhat-etherscan": {
-            "version": "2.1.8",
-            "resolved": "https://registry.npmjs.org/@nomiclabs/hardhat-etherscan/-/hardhat-etherscan-2.1.8.tgz",
-            "integrity": "sha512-0+rj0SsZotVOcTLyDOxnOc3Gulo8upo0rsw/h+gBPcmtj91YqYJNhdARHoBxOhhE8z+5IUQPx+Dii04lXT14PA==",
+            "version": "3.0.3",
+            "resolved": "https://registry.npmjs.org/@nomiclabs/hardhat-etherscan/-/hardhat-etherscan-3.0.3.tgz",
+            "integrity": "sha512-OfNtUKc/ZwzivmZnnpwWREfaYncXteKHskn3yDnz+fPBZ6wfM4GR+d5RwjREzYFWE+o5iR9ruXhWw/8fejWM9g==",
             "dev": true,
             "requires": {
                 "@ethersproject/abi": "^5.1.2",
@@ -14320,12 +14313,13 @@
                 "cbor": "^5.0.2",
                 "debug": "^4.1.1",
                 "fs-extra": "^7.0.1",
-                "node-fetch": "^2.6.0",
-                "semver": "^6.3.0"
+                "semver": "^6.3.0",
+                "undici": "^4.14.1"
             },
             "dependencies": {
                 "semver": {
                     "version": "6.3.0",
+                    "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
                     "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
                     "dev": true
                 }
@@ -20351,11 +20345,6 @@
                 "lodash.toarray": "^4.4.0"
             }
         },
-        "node-fetch": {
-            "version": "2.6.1",
-            "integrity": "sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw==",
-            "dev": true
-        },
         "node-gyp-build": {
             "version": "4.2.3",
             "integrity": "sha512-MN6ZpzmfNCRM+3t57PTJHgHyw/h4OWnZ6mR8P5j/uZtqQr46RRuDE/P+g3n0YR/AiYXeWixZZzaip77gdICfRg==",

package.json

@@ -22,7 +22,7 @@
     "license": "MIT",
     "devDependencies": {
         "@nomiclabs/hardhat-ethers": "^2.0.5",
-        "@nomiclabs/hardhat-etherscan": "^2.1.8",
+        "@nomiclabs/hardhat-etherscan": "3.0.3",
         "@nomiclabs/hardhat-solhint": "^2.0.0",
         "@nomiclabs/hardhat-web3": "^2.0.0",
         "@openzeppelin/contracts": "^4.5.0",